Features Galvanized to resist rust and corrosion. Pipe Fitting Material / Malleable Iron Finish/Coating / Zinc Plated Class / Class 150 Fitting Side A Nominal Pipe Size / 2 1/2 in Fitting Side A Gender / Female Fitting Side A Type / NPT Fitting Side A Pipe Threading / 8 Fitting Side B Nominal Pipe Size / 2 in Fitting Side B Gender / Female Fitting Side B Type / NPT Fitting Side B Pipe Threading / 11 1/2 Color / White Standards / ASME B16.3, ASTM A197, FM Approved, IAPMO, UL Listed